WO1999006480A1 - Composition de caoutchouc pour pneumatique couleur - Google Patents
Composition de caoutchouc pour pneumatique couleur Download PDFInfo
- Publication number
- WO1999006480A1 WO1999006480A1 PCT/EP1998/004601 EP9804601W WO9906480A1 WO 1999006480 A1 WO1999006480 A1 WO 1999006480A1 EP 9804601 W EP9804601 W EP 9804601W WO 9906480 A1 WO9906480 A1 WO 9906480A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- colored
- rubber
- tires
- white
- butadiene
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 138
- 229920001971 elastomer Polymers 0.000 title claims abstract description 61
- 239000005060 rubber Substances 0.000 title claims abstract description 47
- 229920003244 diene elastomer Polymers 0.000 claims abstract description 31
- 239000000945 filler Substances 0.000 claims abstract description 18
- HIDBROSJWZYGSZ-UHFFFAOYSA-N 1-phenylpyrrole-2,5-dione Chemical class O=C1C=CC(=O)N1C1=CC=CC=C1 HIDBROSJWZYGSZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 10
- 239000006229 carbon black Substances 0.000 claims abstract description 9
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 125000003118 aryl group Chemical group 0.000 claims abstract description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 7
- 239000001257 hydrogen Substances 0.000 claims abstract description 7
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 6
- 150000002367 halogens Chemical class 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 68
- 239000000377 silicon dioxide Substances 0.000 claims description 33
- 239000003795 chemical substances by application Substances 0.000 claims description 30
- 229920001577 copolymer Polymers 0.000 claims description 24
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 20
- 230000003712 anti-aging effect Effects 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 15
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 14
- 239000012763 reinforcing filler Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 12
- 230000032683 aging Effects 0.000 claims description 11
- KPNYFXUDBVQRNK-UHFFFAOYSA-N 1-(4-anilinophenyl)pyrrole-2,5-dione Chemical group O=C1C=CC(=O)N1C(C=C1)=CC=C1NC1=CC=CC=C1 KPNYFXUDBVQRNK-UHFFFAOYSA-N 0.000 claims description 9
- 229920002857 polybutadiene Polymers 0.000 claims description 9
- 238000004073 vulcanization Methods 0.000 claims description 9
- 239000005062 Polybutadiene Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- KAKZBPTYRLMSJV-UHFFFAOYSA-N butadiene group Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- 244000043261 Hevea brasiliensis Species 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229920003052 natural elastomer Polymers 0.000 claims description 5
- 229920001194 natural rubber Polymers 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- 229920002554 vinyl polymer Polymers 0.000 claims description 5
- 230000009477 glass transition Effects 0.000 claims description 3
- 229920001195 polyisoprene Polymers 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims description 2
- 238000010186 staining Methods 0.000 abstract description 14
- 230000003014 reinforcing effect Effects 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 description 33
- 238000007539 photo-oxidation reaction Methods 0.000 description 18
- -1 for example Chemical class 0.000 description 15
- 239000000806 elastomer Substances 0.000 description 14
- 150000001993 dienes Chemical class 0.000 description 13
- 239000003963 antioxidant agent Substances 0.000 description 10
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 9
- 238000010411 cooking Methods 0.000 description 9
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 8
- 230000009471 action Effects 0.000 description 8
- 239000003086 colorant Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 238000009472 formulation Methods 0.000 description 5
- 230000000977 initiatory effect Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 239000001993 wax Substances 0.000 description 5
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 230000003078 antioxidant effect Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 125000002897 diene group Chemical group 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 229920003048 styrene butadiene rubber Polymers 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- XXJRQHBFHWBBMH-UHFFFAOYSA-N 1-(4-anilinophenyl)-3-bromopyrrole-2,5-dione Chemical compound O=C1C(Br)=CC(=O)N1C(C=C1)=CC=C1NC1=CC=CC=C1 XXJRQHBFHWBBMH-UHFFFAOYSA-N 0.000 description 2
- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 2
- UDHXJZHVNHGCEC-UHFFFAOYSA-N Chlorophacinone Chemical compound C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)C(=O)C1C(=O)C2=CC=CC=C2C1=O UDHXJZHVNHGCEC-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 206010051246 Photodermatosis Diseases 0.000 description 2
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001565 benzotriazoles Chemical class 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004737 colorimetric analysis Methods 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 239000008380 degradant Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 230000008845 photoaging Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- APPOKADJQUIAHP-GGWOSOGESA-N (2e,4e)-hexa-2,4-diene Chemical compound C\C=C\C=C\C APPOKADJQUIAHP-GGWOSOGESA-N 0.000 description 1
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 1
- PMJHHCWVYXUKFD-SNAWJCMRSA-N (E)-1,3-pentadiene Chemical compound C\C=C\C=C PMJHHCWVYXUKFD-SNAWJCMRSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- IGGDKDTUCAWDAN-UHFFFAOYSA-N 1-vinylnaphthalene Chemical compound C1=CC=C2C(C=C)=CC=CC2=C1 IGGDKDTUCAWDAN-UHFFFAOYSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- HMWCQCYUKQZPRA-UHFFFAOYSA-N 2,4-dimethyl-3-methylidenepent-1-ene Chemical compound CC(C)C(=C)C(C)=C HMWCQCYUKQZPRA-UHFFFAOYSA-N 0.000 description 1
- AZLWWJDQARJADC-UHFFFAOYSA-N 2-(2-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound CCCC(C)(C)C1=CC(N)=CC=C1NC1=CC=CC=C1 AZLWWJDQARJADC-UHFFFAOYSA-N 0.000 description 1
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical class ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 description 1
- PDELBHCVXBSVPJ-UHFFFAOYSA-N 2-ethenyl-1,3,5-trimethylbenzene Chemical group CC1=CC(C)=C(C=C)C(C)=C1 PDELBHCVXBSVPJ-UHFFFAOYSA-N 0.000 description 1
- CTHJQRHPNQEPAB-UHFFFAOYSA-N 2-methoxyethenylbenzene Chemical class COC=CC1=CC=CC=C1 CTHJQRHPNQEPAB-UHFFFAOYSA-N 0.000 description 1
- PJXJBPMWCKMWLS-UHFFFAOYSA-N 2-methyl-3-methylidenepent-1-ene Chemical compound CCC(=C)C(C)=C PJXJBPMWCKMWLS-UHFFFAOYSA-N 0.000 description 1
- NAOFNNQTUGKICH-UHFFFAOYSA-N 3-(4-anilinophenyl)-4-bromopyrrole-2,5-dione Chemical compound O=C1NC(=O)C(Br)=C1C(C=C1)=CC=C1NC1=CC=CC=C1 NAOFNNQTUGKICH-UHFFFAOYSA-N 0.000 description 1
- IHXPIAVZKINWRY-UHFFFAOYSA-N 3-(4-anilinophenyl)pyrrole-2,5-dione Chemical compound O=C1NC(=O)C(C=2C=CC(NC=3C=CC=CC=3)=CC=2)=C1 IHXPIAVZKINWRY-UHFFFAOYSA-N 0.000 description 1
- YPRMWCKXOZFJGF-UHFFFAOYSA-N 3-bromofuran-2,5-dione Chemical compound BrC1=CC(=O)OC1=O YPRMWCKXOZFJGF-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- 229910018512 Al—OH Inorganic materials 0.000 description 1
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920013645 Europrene Polymers 0.000 description 1
- 241001441571 Hiodontidae Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 101150004794 URC2 gene Proteins 0.000 description 1
- 241000221013 Viscum album Species 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N dimethylformamide Substances CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000019239 indanthrene blue RS Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical group [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- WGARMULIELDQEH-UHFFFAOYSA-N n-cyclohexyl-1,3-benzothiazole-2-sulfinamide Chemical compound N=1C2=CC=CC=C2SC=1S(=O)NC1CCCCC1 WGARMULIELDQEH-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000000399 optical microscopy Methods 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 238000005949 ozonolysis reaction Methods 0.000 description 1
- ATGUVEKSASEFFO-UHFFFAOYSA-N p-aminodiphenylamine Chemical compound C1=CC(N)=CC=C1NC1=CC=CC=C1 ATGUVEKSASEFFO-UHFFFAOYSA-N 0.000 description 1
- 150000004989 p-phenylenediamines Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N piperylene Natural products CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- FYNROBRQIVCIQF-UHFFFAOYSA-N pyrrolo[3,2-b]pyrrole-5,6-dione Chemical class C1=CN=C2C(=O)C(=O)N=C21 FYNROBRQIVCIQF-UHFFFAOYSA-N 0.000 description 1
- 125000002943 quinolinyl group Chemical class N1=C(C=CC2=CC=CC=C12)* 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 239000011885 synergistic combination Substances 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 150000007970 thio esters Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- FBBATURSCRIBHN-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyldisulfanyl)propyl]silane Chemical group CCO[Si](OCC)(OCC)CCCSSCCC[Si](OCC)(OCC)OCC FBBATURSCRIBHN-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
Definitions
- the present invention relates to rubber compositions for tires, as well as to anti-degrading agents, also called anti-aging agents, intended to protect these compositions against atmospheric aging.
- It relates more particularly to the protection of white, clear or colored rubber compositions, devoid of carbon black and reinforced with at least one white or colored filler, in particular of silica, such compositions being usable for the manufacture of tires of color.
- vulcanizates of natural and synthetic diene rubbers due to the presence of double bonds on their molecular chains, are liable to deteriorate more or less rapidly after prolonged exposure to the atmosphere, if they are not not protected, due to known mechanisms of oxidation and ozonolysis.
- Such mechanisms have been described, for example, in the following documents: FR-A- 1 358 702; FR-A-1 508 861 or US-A-3 419 639; FR-A-2,553,782; ref. [1]: "Antidegradants for tire applications” in “Tire compounding", Education Symposium No 37 (ACS), Cleveland, Communication I, October 1995; ref. [2]: “Non-blooming high performance antidegradants", Kaut.
- EP-A-0810258 published recently disclosed for its new diene rubber composition reinforced by another special white filler, in this case alumina (Al2O3) of high dispersibility, which allows also obtaining tires or treads having an excellent compromise of conflicting properties.
- alumina Al2O3
- the non-staining antioxidants conventionally used in white, clear or colored rubber compositions are phenolic derivatives (see for example FR-A-2 553 782; ref. [1] and [3 ] supra); the latter have the disadvantage of being less effective, for diene elastomers. than their PPD or TMQ derivative counterparts used in black color compositions.
- non-staining antiozonants protective waxes of the paraffinic, macro- or microcrystalline type are certainly used in a known manner, but these waxes, without chemical action with respect to ozone, constitute only simple barriers or protective films to the elastomer surface. physical barriers which lose their effectiveness as soon as they are broken by external phenomena such as repeated mechanical stresses, for example during the rolling of tires.
- An antiozonant remaining active under the effect of dynamic constraints is therefore essential: such chemically active antiozonants have certainly been proposed, such as for example lactams (see for example FR-A-2 553 782) or cyclic acetals (see by eg ref. [7]: "The action of antiozonants in rubber. RCT vol. 58, No 4. 1985.
- anti-UV agents are known. non-staining, for example UN absorbers. (so-called “UVA” products) based on benzotriazoles or benzophenones. or compounds based on sterically hindered amines, known as “Hindered Amine Light Stabilizers" (“HALS”) which are capable of neutralizing the combined action of UNs. and oxygen by the formation of stable nitroxy radicals (see for example application JP 1996/25920. ref. [3] and [5] above).
- HALS Hindered Amine Light Stabilizers
- These UVA or HALS compounds usually used for the protection of saturated polymers such as polyethylene or polypropylene. have the disadvantage of being very expensive.
- a first subject of the invention consists of a white, clear or colored rubber composition, devoid of carbon black and usable for the manufacture of color tires, comprising at least (i) a diene elastomer, (ii) a white or colored reinforcing filler and (iii) an anti-aging, photostable and non-staining agent with respect to this composition, consisting of a ⁇ -phenyl-maleimide derivative of formula -teneral: in which:
- a subject of the invention is also the use of a rubber composition in accordance with the invention for the manufacture of colored tires or for the manufacture of colored rubber articles intended for such tires, these articles being chosen in particular in the group formed by the treads, the sub-layers intended, for example, to be placed under these treads, the sidewalls, the heels, the protectors, the inner tubes or the inner waterproof gums for tubeless tires.
- tires or colored articles in the present application is meant tires or articles of which at least part is of a color other than conventional black, including a white color.
- the subject of the invention is also these colored tires and these colored rubber articles themselves, when they comprise a rubber composition in accordance with the invention.
- the invention also relates to a process for protecting against aging the white, clear or colored rubber compositions which can be used for the manufacture of color tires or of rubber articles intended for such tires, this process being characterized in that an anti-aging agent corresponding to formula (1) above is incorporated by mixing into said composition, before its vulcanization.
- a subject of the invention is finally the use of an anti-aging agent corresponding to formula (1) above for the protection of white, clear or colored rubber compositions which can be used for the manufacture of colored tires or rubber articles intended for such tires.
- the properties of the rubber compositions are evaluated as indicated below.
- the test pieces used are non-standard test pieces consisting of rubber strips with dimensions (L x 1 xe) equal to 1 10 x 15 x 2.5 (length, width and thickness in mm) .
- the measurements are carried out at 130 ° C. in accordance with standard AFNOR-NF-T43-005 of November 1980.
- compositions are subjected after cooking to an accelerated photo-aging in the following manner: one face of the test pieces is exposed for a determined time (for example 4 or 12 days) under 4 high pressure mercury vapor lamps (MAZDA MA400) at 60 ° C in a SEPAP 12/24 (MPC) enclosure. The changes in mechanical and colorimetric properties are then measured.
- MAZDA MA400 high pressure mercury vapor lamps
- MPC SEPAP 12/24
- test D25 from "0" (very good) to "10" (very bad);
- Test pieces that broke before the end of the test are indicated by the letter “R” in the results tables, which is equivalent to an even worse performance than a note “10” in test D25 or "5.5.5" in test S 10.
- the colorimetric values are determined using a Microflash 200 D DATA COLOR spectrocolorimeter in configuration D65 / 10 (daylight; observation angle 10 °). The colorimetric properties are measured in a known manner, according to the colorimeter instruction manual (May 1995). by analysis of the reflectance spectrum of the test pieces.
- the axis a * represents the green-red chromaticity coordinate, with a scale going from -100 (green) to +100 (red);
- - the axis b * represents the coordinate of blue-yellow chromaticity, with a scale going from -100 (blue) to +100 (yellow);
- the axis L * represents the brightness coordinate, with a scale going from 0 (black) to 100 (white);
- compositions according to the invention comprise as basic constituents (i) at least one diene elastomer, (ii) at least one white or colored filler as reinforcing filler , and (iii) at least one anti-degrading, photostable and non-staining agent with respect to these compositions, consisting of an N-phenyl-maleimide derivative corresponding to the above general formula (1).
- elastomer or “diene” rubber is understood in known manner an elastomer derived at least in part (i.e. a homopolymer or a copolymer) of diene monomers (monomers carrying two carbon-carbon double bonds, conjugated or not).
- diene elastomer a diene elastomer derived at least in part from conjugated diene monomers, having a rate of units or units of diene origin (conjugated dienes) which is greater than 15% (% in moles).
- diene elastomers such as butyl rubbers or copolymers of dienes and alpha-olefins of the EPDM type do not enter into the preceding definition and can be qualified in particular as "essentially saturated diene elastomers". "(rate of motifs of diene origin low or very low, always less than 15%>).
- the expression “highly unsaturated” diene elastomer is understood in particular to mean a diene elastomer having a rate of units of diene origin (conjugated dienes) which is greater than 50%).
- butadiene-1.3 is suitable in particular. 2-methyl-1,3-butadiene. 2.3-di (C ⁇ -C 5 alkyl) -1.3-butadienes such as for example 2,3-dimethyl-1, 3-butadiene. 2.3-diethyl-1.3-butadiene. 2-methyl-3-ethyl-1,3-butadiene. 2-methyl-3-isopropyl-1.3-butadiene. an aryl-1,3-butadiene, 1,3-pentadiene, 2,4-hexadiene.
- vinyl aromatic compounds examples include styrene, ortho-, meta-, para-methylstyrene. the commercial "vinyl-toluene" mixture. para-tertiobutylstyrene. methoxystyrenes. chlorostyrenes. vinyl mesitylene, divinylbenzene, vinylnaphthalene.
- the copolymers can contain between 99%> and 20%> by weight of diene units and from 1% to 50% by weight of vinyl aromatic units.
- the elastomers can have any microstructure which is a function of the polymerization conditions used, in particular the presence or absence of a modifying and / or randomizing agent and the quantities of modifying and / or randomizing agent used.
- the elastomers can be, for example, block, statistics, sequences, microsequences. and be prepared in dispersion or in solution.
- polybutadienes are suitable and in particular those having a content of - 1.2 units between 4% and 80%> or those having a cis-1.4 content greater than 80%>, polyisoprenes. butadiene-styrene copolymers and in particular those having a styrene content of between 5%> and 50%> by weight and more particularly between 20% and 40%). a content of bonds - 1.2 of the butadienic part between 4%> and 65%). a content of trans-1.4 bonds of between 20% and 80%.
- butadiene-isoprene copolymers and in particular those having an isoprene content of between 5%> and 90%> by weight and a glass transition temperature (Tg) from -40 ° C to -80 ° C.
- Tg glass transition temperature
- isoprene-styrene copolymers and in particular those having a styrene content of between 5% and 50%> by weight and a Tg of between -25 ° C and -50 ° C.
- butadiene-styrene-isoprene copolymers are particularly suitable those having a styrene content of between 5%> and 50%> by weight and more particularly between ⁇ 0% and 40%>, an isoprene content of between 15 % and 60%> by weight and more particularly between 20%> and 50%.
- the elastomer can be coupled and / or star or even functionalized with a coupling and / or star-forming or functionalizing agent.
- the elastomer can also be natural rubber or a blend based on natural rubber with any elastomer, in particular diene, synthetic.
- the diene elastomer of the composition in accordance with the invention is chosen from the group of highly unsaturated diene elastomers constituted by polybutadienes. polyisoprenes or natural rubber, butadiene-styrene copolymers. butadiene-isoprene copolymers, isoprene-styrene copolymers, butadiene-styrene-isoprene copolymers. or a mixture of two or more of these compounds.
- the diene elastomer is preferably a butadiene-styrene copolymer prepared in solution having a styrene content of between 20%> and 30%> by weight, a content of vinyl bonds in the butadiene part of between 15% and 65%>, a content of trans-1.4 bonds between between 15%> and 75% and a glass transition temperature of between -20 ° C and - 55 ° C, this butadiene-styrene copolymer being optionally used in admixture with a polybutadiene preferably having more than 90% of cis-1,4 bonds.
- all the white fillers (also called clear fillers) capable of reinforcing, alone or in mixture with one another, more or less depending on the intended applications, are suitable for a tire rubber composition, such as, for example, silica, alumina, clays, hydrates or oxides of aluminum and / or magnesium, bentonite. talc, chalk, kaolin, titanium oxide.
- the rate of reinforcing filler is within a range from 30 to 150 phr (parts by weight per hundred parts of elastomer). more preferably from 30 to 100 phr. the optimum being different depending on the intended applications: the level of reinforcement expected on a bicycle tire, for example, is of course much lower than that required on a tire capable of traveling at high speed in a sustained manner, for example a motorcycle tire, a tire for passenger vehicle or for commercial vehicle such as truck.
- silica (Si0 2 ) or alumina (AI2O3) constitute (s) the majority c ' that is to say more than 50%> by weight of the total reinforcing filler.
- silica and / or alumina constitute more than 80% by weight of this total reinforcing filler.
- Silica and / or alumina can constitute the whole of the reinforcing filler; however, other white fillers may, depending on the intended applications, advantageously represent a more or less significant fraction of the reinforcing filler.
- another white filler associated for example with silica or alumina can have the effect of opacifying the colors, in other words of reducing the clearness, that is to say say more or less translucent of compositions loaded with silica or alumina.
- This other white filler is preferably chosen from chalk, talc or kaolin, more preferably kaolin; it is preferably used at a rate of 2.5 to 12.5%), more preferably from 5 to 10% (%> by weight relative to the weight of silica and / or alumina), depending on the intended applications; for a rate lower than 2.5% the effect is generally not very visible whereas for rates higher than 12.5%> the mechanical properties of the vulcanizates can decrease.
- titanium oxide has the effect of giving a pastel tone, particularly aesthetic, to the colors chosen; the level of titanium oxide preferably varies from 0.5 to 7%, more preferably from 1 to 3% (% by weight relative to the weight of silica and / or alumina), depending on the intended applications. For a rate lower than 0.5%, the effect is generally not very visible whereas for rates higher than 7% there is a risk of brushing on the surface of the vulcanizates.
- the invention also applies to cases where a colored reinforcing filler is chosen, compatible with the desired color for the tire, this colored filler being able to be a naturally colored filler, or also obtained by a prior coloring operation. , for example a precolored silica or alumina.
- the silica used can be any reinforcing silica known to a person skilled in the art, in particular any precipitated or pyrogenic silica having a BET surface as well as a CTAB specific surface, both less than 450 ⁇ r / g, even if the highly dispersible precipitated silicas are preferred, in particular when the invention relates to tires having a low rolling resistance.
- the term “highly dispersible silica” is understood to mean any silica having a very significant ability to disaggregate and to disperse in a polymer matrix, observable in known manner by electron or optical microscopy, on fine sections.
- Nonlimiting examples of such preferential highly dispersible silicas mention may be made of Perkasil KS 430 silica from Akzo, BV 3380 silica from Degussa, Zeosil 1,165 MP and 1,115 MP silica from Rhône-Poulenc , Hi-Sil 2000 silica from PPG, Zeopol 8741 or 8745 silica from Huber. treated precipitated silicas such as for example the silicas "doped" with aluminum described in application EP-A-0 735 088.
- the reinforcing alumina preferably used is a highly dispersible alumina having a BET surface area from 30 to 400 ⁇ r / g, more preferably from 80 to 250 ⁇ r / g, an average particle size at most equal to 500 nm, more preferably at most equal to 200 nm, a high level of reactive Al-OH surface functions, as described in the above-mentioned application EP-A-0 810 258.
- reinforcing white filler is generally understood to mean mixtures of different reinforcing white fillers, in particular silica and / or highly dispersible aluminas such as described above.
- any known coupling agent can be used to ensure the connection between the reinforcing white filler and the diene elastomer, such as organosilanes, in particular polysulphurized alkoxysilanes such as bis (trialkoxyl (C ⁇ -C) silylpropyl) tetrasulphides), in particular of bis (trimethoxysilylpropyl) or bis (triethoxysilylpropyl), in particular the last of these compounds, of formula [(C2H5 ⁇ ) 3Si (CH2) 3S2J2 > sold for example by the company Degussa under the name Si69, or by the company Osi under the URC2 designation.
- organosilanes such as bis (trialkoxyl (C ⁇ -C) silylpropyl) tetrasulphides), in particular of bis (trimethoxysilylpropyl) or bis (triethoxysilylpropyl), in particular the last of these compounds, of formula
- the rubber composition in accordance with the invention is protected against aging by a photostable and non-staining anti-degrading agent with respect to this composition; the latter consists of an N-phenyl-maleimide derivative corresponding to the general formula (1) which follows:
- R 1 and R 2 identical or different, represent hydrogen or a halogen, in particular bromine (derivative of N-phenyl-bromomaleimide). More preferably. R 1 and R 2 both represent hydrogen.
- Ph represents a phenyl group. substituted or unsubstituted
- Ar represents an aryl group. substituted or unsubstituted, having from 6 to 12 carbon atoms, preferably a phenyl group. substituted or unsubstituted; where one or more substituents are present on one and / or the other of these two Ph and Ar groups, these substituents are preferably selected from alkyl C] -C] 0, straight chain or branched, of preferably in C
- the derivative more particularly selected is N- (4-anilinophenyl) -maleimide, in which Ph and Ar of the above formula (1) each represent an unsubstituted phenyl group; such a compound as well as its production methods have been described in particular in FR-A-1 350 428. GB-A-1 533 068. FR-A-2 050 984 or US-A-3 767 628.
- N-phenyl-maleimide derivatives have been found to be sufficiently effective on their own for the anti-aging protection of the compositions according to the invention, while being photostable and non-staining with respect to these compositions; they can therefore advantageously constitute the only antidegradant (antioxidant, chemical antiozonant and anti-UV) present in these compositions of the invention, apart from the conventional film-forming waxes which it is preferable to keep for specific, static and superficial antiozone protection , that they bring.
- compositions in accordance with the invention could of course contain, in addition to the N-phenyl-maleimide derivatives defined above, other known non-staining anti-degrading agents, such as for example antioxidants from the family of phenolic derivatives. , phosphites. thioesters or thioethers. substituted non-staining diphenylamines, these antioxidants being taken alone or in combination, chemical antiozonants such as cyclic acetals, or anti-U.V. such as benzotriazoles and / or "HALS" amines.
- other known non-staining anti-degrading agents such as for example antioxidants from the family of phenolic derivatives. , phosphites. thioesters or thioethers. substituted non-staining diphenylamines, these antioxidants being taken alone or in combination, chemical antiozonants such as cyclic acetals, or anti-U.V. such as benzotriazoles and / or
- N-phenyl-maleimide derivatives in the compositions of the invention, depending on the intended application and the nature of the diene elastomer to be protected.
- This content is preferably within a range of 0.5 to 5 phr, more preferably from 1 to 3 phr; below the minimum rate indicated, the effect of the anti-degrading agent is insufficient, while beyond the maximum rate indicated, there is no longer any improvement in protection while the costs of the formulation continue to increase , and that there is a risk of penalizing the mechanical properties of the vulcanizates.
- any type of coloring agent known to a person skilled in the art can be used, this coloring agent possibly being organic or inorganic, soluble or not in the compositions according to the invention.
- mineral dyes such as, for example, powdered metals, in particular copper or aluminum powder, or various metal oxides, in particular silicates, aluminates, titanates.
- iron oxides or hydroxides mixed oxides of different metallic elements such as Co. Ni, Al. Zn.
- organic pigments such as indanthrones, diketo-pyrrolo-pyrroles or diazo condensates. organometallic pigments such as phthalocyanines.
- the color of the compositions in accordance with the invention can thus vary over a very wide range, for example in different shades of red, orange, green, yellow, blue or even brown or gray.
- compositions in accordance with the invention contain, in addition to the compounds described above, all or part of the constituents usually used in diene rubber compositions of tires, such as for example plasticizers, a crosslinking system based either on sulfur or on sulfur and / or peroxide donors, vulcanization accelerators, extension oils, of the aromatic, naphthenic or paraffinic type. or various anti-fatigue agents.
- compositions in accordance with the invention may contain coupling agents and / or of recovery of the reinforcing filler other than those mentioned above, in combination or in place of the latter, such as, for example, polyols, amines, alkoxysilanes.
- the rubber compositions are prepared by using the diene elastomers according to completely known techniques, by thermomechanical work in one or two stages in an internal paddle mixer, followed by mixing on an external mixer.
- the diene elastomer or the mixture of elastomers is introduced into an internal mixer, filled to 70% and the temperature of which is approximately 60 ° C., then after an appropriate time kneading, for example of the order of 1 minute, all the other ingredients except the vulcanization system are added; the thermomechanical mixing work is continued until a determined drop temperature (175 ° C for test 1 below. 165 ° C for test 2). The mixture thus obtained is recovered and then the vulcanization system is added on an external mixer (homo-finisher) at 30 ° C. Vulcanization is carried out at 150 ° C (45 min for test 1, approximately 15 min for test 2).
- composition No2 PPD type anti-degradant
- composition No3 antidegradant consisting of N- (4-anilinophenyl) -maleimide.
- Composition No 3 is therefore the only composition in accordance with the invention.
- N- (4-anilinophenyl) -maleimide is prepared by the action of maleic anhydride on N-phenyl-p-phenylè ⁇ e diamine, according to the process described in the document FR-A- 1 350 428 cited above, with the difference that one proceeds in a single step in a single solvent, NN-dimethylformamide (instead of dioxane and benzene).
- the SBR elastomer (styrene-butadiene copolymer) is prepared in solution, and comprises 25.6%> of styrene, 60% of polybutadiene units 1 -2 and 1 S% of trans polybutadiene units - 1.4 (Tg equal to -29 ° C ): the elastomer BR (polybutadiene) is a commercial product, having more than 90% (approximately 98%>) of cis-1, 4 bonds.
- Tables 1 to 4 successively give the formulation of the different compositions (Table 1 - rate of the different products expressed in phr), their properties after cooking and the evolution of their mechanical properties after photo-oxidation (Table 2), their resistance to 'ozone (Table 3), and finally the evolution of their colorimetric properties after photooxidation (Table 4).
- composition No3 are those whose mechanical properties (F 10, F25 and Shore A hardness) change less quickly compared to the control composition (Nol).
- the results obtained on the composition according to the invention (No3) being substantially identical to those obtained with the conventional anti-degrading agent (composition No2);
- composition No 3 N-phenyl-maleimide derivative
- parameter ⁇ E is less than 10 for the composition according to the invention as for the control composition, while it is greater than 30 for the composition protected by 6-PPD.
- compositions are identical except for the following differences:
- composition No4 control: no anti-aging protection
- - composition No5 PPD type anti-degradant
- antidegradant consisting of N- (4-anilinophenyl) -maleimide
- composition No7 antidegradant consisting of N- (4-anilinophenyl) -bromomaleimide.
- compositions No6 and No7 are therefore in accordance with the invention.
- the N- (4-anilinophenyl) -maleimide is prepared as indicated in test 1 above.
- the N- (4-anilinophenyl) -bromomaleimide is prepared in the same way, but this time by action of bromomaleic anhydride on N-phenyl-p-phenylene diamine; it is used in composition No7 at an isomolar rate relative to the N- (4-anilinophenyl) -maleimide of composition No6.
- Tables 5 to 7 successively give the formulation of the different compositions (Table 5 - rate of the different products expressed in phr), their properties after cooking and the evolution of their mechanical properties after photo-oxidation (Table 6), and finally l 'evolution of their colorimetric properties after photo-oxidation (table 7).
- the properties after cooking correspond to the "optimum cooking” (ie at T99), determined in known manner according to standard AFNOR-NF-T43-015 of August 1975, in which T99 corresponds to the time necessary to obtain 99 % of the maximum torque difference between the minimum torque before cooking and the maximum torque after cooking, at the cooking temperature (150 ° C in this case).
- the protected compositions (No5 to No7) are those whose mechanical properties (F 10. F25 and hardness
- composition No7 25 Shore A evolve more slowly compared to the control composition (No4); the results obtained on composition No7 are substantially identical to those obtained with the conventional anti-degrading agent of the I-PPD type (composition No5);
- parameter ⁇ E is less than 25 for the compositions in accordance with the invention, as for the control composition, while it is greater than 50 for the composition protected by I-PPD.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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AU92545/98A AU9254598A (en) | 1997-08-01 | 1998-07-22 | Rubber composition for colour tyre |
JP2000505230A JP2001512167A (ja) | 1997-08-01 | 1998-07-22 | 着色タイヤ用ゴム組成物 |
EP98945087A EP1000117A1 (fr) | 1997-08-01 | 1998-07-22 | Composition de caoutchouc pour pneumatique couleur |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR9710057 | 1997-08-01 | ||
FR97/10057 | 1997-08-01 |
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WO1999006480A1 true WO1999006480A1 (fr) | 1999-02-11 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/EP1998/004601 WO1999006480A1 (fr) | 1997-08-01 | 1998-07-22 | Composition de caoutchouc pour pneumatique couleur |
Country Status (4)
Country | Link |
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EP (1) | EP1000117A1 (fr) |
JP (1) | JP2001512167A (fr) |
AU (1) | AU9254598A (fr) |
WO (1) | WO1999006480A1 (fr) |
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WO2001057123A1 (fr) * | 2000-01-31 | 2001-08-09 | Bayer Aktiengesellschaft | Preparations polymeres vulcanisables |
WO2003002649A1 (fr) | 2001-06-28 | 2003-01-09 | Societe De Technologie Michelin | Bande de roulement pour pneumatique renforcee d'une silice a tres basse surface specifique |
WO2003066722A1 (fr) * | 2002-02-07 | 2003-08-14 | Societe De Technologie Michelin | Bande de roulement pour pneumatique |
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US8546478B2 (en) | 2010-05-27 | 2013-10-01 | The Yokohama Rubber Co., Ltd. | Thermoplastic elastomer composition and method for producing the same |
US8796378B2 (en) | 2008-06-17 | 2014-08-05 | The Yokohama Rubber Co., Ltd. | Elastomer composition and pneumatic tire using same |
WO2015162053A1 (fr) | 2014-04-22 | 2015-10-29 | Compagnie Generale Des Etablissements Michelin | Composition de caoutchouc pour pneumatique comportant un agent de couplage azosilane |
US9283365B2 (en) | 2008-02-07 | 2016-03-15 | The University Of Queensland | Patch production |
WO2017001616A1 (fr) | 2015-07-02 | 2017-01-05 | Compagnie Generale Des Etablissements Michelin | Composition de caoutchouc comprenant une silice de tres haute surface specifique et une resine hydrocarbonee de faible temperature de transition vitreuse |
WO2018203002A1 (fr) | 2017-05-05 | 2018-11-08 | Compagnie Generale Des Etablissements Michelin | Composition de caoutchouc comprenant au moins une silice en tant que charge renforcante inorganique |
WO2019193287A1 (fr) | 2018-04-06 | 2019-10-10 | Compagnie Generale Des Etablissements Michelin | Pneumatique comportant une composition de caoutchouc comprenant un nouvel agent de couplage polysulfure porteur de groupes associatifs azotes |
WO2019193286A1 (fr) | 2018-04-06 | 2019-10-10 | Compagnie Generale Des Etablissements Michelin | Pneumatique comportant une composition de caoutchouc comprenant un nouvel agent de couplage polysulfure porteur de groupes associatifs azotes |
CN113045808A (zh) * | 2021-05-12 | 2021-06-29 | 山东新豪克轮胎有限公司 | 耐磨型胎面配方 |
WO2022049350A1 (fr) | 2020-09-04 | 2022-03-10 | Compagnie Generale Des Etablissements Michelin | Composition de caoutchouc a base d'elastomere dienique fortement sature |
WO2022049351A1 (fr) | 2020-09-04 | 2022-03-10 | Compagnie Generale Des Etablissements Michelin | Composition de caoutchouc a base d'elastomere dienique fortement sature |
US20220325080A1 (en) * | 2019-11-05 | 2022-10-13 | Aleksandr Aleksandrovich KHASIN | Composition for solid tires and a non-marking solid tire |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003063206A (ja) | 2001-08-24 | 2003-03-05 | Sumitomo Rubber Ind Ltd | エコタイヤ |
JP5089852B2 (ja) * | 2004-07-05 | 2012-12-05 | 住友ゴム工業株式会社 | エコタイヤ |
CN101137518B (zh) * | 2005-01-14 | 2010-12-08 | 株式会社普利司通 | 具有改进的二氧化硅补强的轮胎组合物和其硫化橡胶 |
JP4573850B2 (ja) * | 2007-03-29 | 2010-11-04 | 住友ゴム工業株式会社 | エコタイヤ |
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FR1350428A (fr) * | 1962-05-17 | 1964-01-24 | Us Rubber Co | nu-(4-anilinophényl) maléimide à titre de composé chimique nouveau |
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JPS63137938A (ja) * | 1986-12-01 | 1988-06-09 | Yokohama Rubber Co Ltd:The | ゴム組成物 |
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1998
- 1998-07-22 WO PCT/EP1998/004601 patent/WO1999006480A1/fr not_active Application Discontinuation
- 1998-07-22 JP JP2000505230A patent/JP2001512167A/ja active Pending
- 1998-07-22 EP EP98945087A patent/EP1000117A1/fr not_active Withdrawn
- 1998-07-22 AU AU92545/98A patent/AU9254598A/en not_active Abandoned
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FR1350428A (fr) * | 1962-05-17 | 1964-01-24 | Us Rubber Co | nu-(4-anilinophényl) maléimide à titre de composé chimique nouveau |
US3767628A (en) * | 1969-06-23 | 1973-10-23 | Goodyear Tire & Rubber | Age resisters and age resistant polymeric compositions |
JPS62124134A (ja) * | 1985-11-25 | 1987-06-05 | Bridgestone Corp | 低発熱性ゴム組成物 |
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Also Published As
Publication number | Publication date |
---|---|
AU9254598A (en) | 1999-02-22 |
JP2001512167A (ja) | 2001-08-21 |
EP1000117A1 (fr) | 2000-05-17 |
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